[EMAIL PROTECTED] wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Sat, Nov 11, 2006 at 11:51:20AM +0100, Attilio Fiandrotti wrote: > >>Attilio Fiandrotti wrote: >> >>>Hi >>> >>>In an application i add many items to a ListStore and make it scroll on >>>the fly to the default option row, like this > > [...] > >>I eventually managed this by scrolling the treeview from a callback that >>gets fired after the expose event is fired. >>In order to have scrolling performed only the first time expose event is >>fired, i use a global flag which i reset from inside the callback the >>first time it's run. >>I now would like to know if there is a way to run a signal handler only >>once and without using a second signal handler or global flags. > > > You just might want to call g_signal_handler_disconnect from whithin the > signal > handler. You'll have to stash the handler ID you get from > g_signal_connect() somewhere accessible from the handler (for example in > the user data struct). > > OTOH, g_signal_add_emission_hook() seems to be the function made for > you :) > > In an emission hook function you just return FALSE if you want the hook > to be removed. You'll have to check whether your particular signal > accepts emission hooks, though.
disconnecting the signal handler from within the callback function did the trick. thanks Attilio _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
